Added a fullscreen button to vizes

One does not simply load a new page 

![one does not simply](https://f.cloud.github.com/assets/1268772/1298407/34da8b52-30f3-11e3-86bc-58056227c5b4.jpg)

Removes the surrounding page so that it can be fullscreen. Saves all changes that may have been made to the viz. 

A fix for #814